TWI610768B - Magnetic adaptor and ratchet wrench including the same - Google Patents

Abstract

The invention relates to a magnetic joint. The magnetic joint includes: a rotating handle; a telescopic rod, including a connecting portion extending axially from the rotating handle, a shaft telescopically connecting the connecting portion, and a connecting portion and The elastic part between the shafts, the assembly part is driven to rotate by the turning handle and is provided with a set of joints, the set of joints is provided to be set without relative free rotation with a set of setting holes of a ratchet head, the set holes It is a perforation; when the sleeve joint is sleeved with the sleeve hole relatively freely, the turning handle is located outside one of the ratchet heads and can be manually rotated. The invention also relates to a ratchet wrench. The ratchet wrench includes the magnetic joint, and further includes: a wrench body; a ratchet head which is pivotally provided on the wrench body; the ratchet head is provided with a sleeve hole which is sleeved without relative free rotation with the sleeve joint; The set hole is a perforation.

Description

Magnetic joint and ratchet wrench including the same

The invention relates to a magnetic joint and a ratchet wrench including the magnetic joint.

Wrenches with replaceable joints have been widely used in daily life and industrial environments. Among them, magnetic joints can be used instead of holding magnetically to hold fasteners on, for example, ratchet wrenches, making the use of ratchet wrenches more flexible.

However, as disclosed in TWI224538, the conventional magnetic joint is only used as an extension rod of a ratchet wrench after installation. It is still necessary to use a ratchet wrench to reciprocate slightly when it is initially locked or unscrewed at the rear section. It is inconvenient and time-consuming to operate, and convenience needs to be improved.

Therefore, it is necessary to provide a novel and progressive magnetic joint and a ratchet wrench including the magnetic joint to solve the above problems.

The main object of the present invention is to provide a magnetic joint and a ratchet wrench including the magnetic joint, which can be loosened and fast-rotated and fastened at the initial lock-in or rear section, and has magnetic properties to prevent the fastener from falling off. The installation is simple and can cooperate. Flexible use of various tool connections.

In order to achieve the above object, the present invention provides a magnetic joint, including: a rotating handle; a telescopic rod, including a connecting portion extending axially from the rotating handle, and a shaft telescopically connected to the connecting portion. And an elastic member provided between the assembling part and the shaft, the assembling part is driven to rotate by the turning handle and is provided with a set of joints, the set of joints is not relatively free from a set of setting holes of a ratchet head The sleeve is rotatably sleeved, and the sleeve hole is a perforation. When the sleeve joint and the sleeve hole do not rotate relatively freely, the rotary handle is located outside one of the ratchet heads and can be manually rotated.

In order to achieve the above object, the present invention further provides a ratchet wrench, which includes a magnetic joint as described above, and further includes: a wrench body; a ratchet head, which is pivotably disposed on the wrench body, and the ratchet head is provided with a The sleeve hole is a sleeve hole which is not relatively free to rotate. The sleeve hole is a perforation.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 6, which show a preferred embodiment of the present invention. The magnetic joint 1 of the present invention includes a rotating handle 10 and a telescopic rod member 20.

The telescopic rod 20 includes an assembly portion 21 axially extended from the rotating handle 10, a shaft 22 which is telescopically connected to the assembly portion 21, and an extension portion 21 and the shaft 22. Between the elastic members 23, the assembly portion 21 is driven to rotate by the turning handle 10 and is provided with a set of joints 24. The set of joints 24 is provided to be set without relative free rotation with a set of setting holes 42 of a ratchet head 41. The sleeve hole 42 is a perforation; when the sleeve joint 24 and the sleeve hole 42 are not relatively free to rotate, the rotation handle 10 is located outside one of the ratchet heads 41 and can be manually rotated. Therefore, when the wrench is used, the rotating handle 10 can be used as another force application end, and the rotation can be performed in a plurality of turns quickly, thereby saving time.

The assembling portion 21 is further provided with a joint 25 detachably assembled with the rotating handle 10. The rotating handle 10 is provided with a rod hole 26, and the rod joint 25 is provided with a plurality of rods 251 in the circumferential direction, and the plurality of rods 251 are engaged in the rod holes 26. The rotary handle 10 can be easily assembled and disassembled through the structure of the rod hole 26 and the plurality of rods 251, which is convenient for maintenance and replacement as required. In this embodiment, a plurality of concave-convex structures 11 are provided on the other periphery of the rotating handle 10 so that it is not easy to slip when the rotating handle 10 is rotated.

In more detail, the sleeve joint 24 is smaller than the sleeve hole 42 and is not inserted into a group connection hole 32 of a group of joints 31 of a tool connector 30 relatively freely. The group of joints 31 and the ratchet head 41 The sleeve hole 42 is sleeved without being relatively free to rotate. Alternatively, the sleeve joint can also be designed to fit the size of the sleeve hole and can be directly inserted into the sleeve hole without relatively free rotation, and the group connector of the tool connector is not opposed to the sleeve connector. It can be assembled in a freely rotating manner, or another telescoping rod can be provided with a male or female joint that can be directly assembled with an object to be disassembled (such as a fastener). The tool connector 30 can be a sleeve, a post or a screwdriver head, and can be used in accordance with the working environment and the type of a fastening member 50. In this embodiment, the set of joints 24 is a square head, which is inserted into the set of connection holes 32 of a square shape, and the set of joints 31 is of a square shape, which is set on the square shape of the set hole 42 of the ratchet head 41. The tool connector 30 is a sleeve, and can be used with the fastening member 50 with an external hexagon nut, for example.

The telescopic rod member 20 further includes a kit 27 connected to an end of the shaft 22 and a magnetic member 28 accommodated in the kit 27. In this embodiment, the magnetic member 28 includes a magnet 281 and a magnetically permeable housing 282 containing the magnet 281. The housing 282 is provided with a plurality of rods 283 in the circumferential direction, and the inner wall of the kit 27 is provided with a plurality of rods 273. The housing 282 and the rods 273, 283 of the kit 27 are engaged. The magnetic member 28 can hold the fastening member 50 made of magnetically permeable material in the tool connection member 30. By engaging the casing 282 with the kit 27, the magnetic member 28 can be easily assembled or replaced.

A sliding hole 211 is formed through the connecting portion 21. A shrinking hole 212 is formed at one end of the sliding hole 211. An abutment edge 223 is protruded radially from one end of the shaft 22. The shaft 22 is slidably disposed in the sliding hole 211. In this case, the abutment edge 223 can abut against the necking 212. In this embodiment, the sliding hole 211 is opened toward the rotating handle 10, and the elastic member 23 and the abutment edge 223 provided in the sliding hole 211 can ensure that the fastening member 50 is maintained in a proper position each time it is used. Therefore, the sleeve can drive the fastening member 50 and the fastening member 50 is easily detached from the sleeve after being locked. The kit 27 is provided with a socket 271 and a ring groove 272 provided on the wall of the hole of the socket 271. The end of the shaft 22 is inserted into the socket 271 and is provided with a ring groove 221. A C buckle 222 is fastened to the socket. The ring groove 272 and the ring groove 221. The material of the C buckle 222 is a material with good elasticity, such as elastic metal or rubber. With the elasticity of the C buckle 222, the relative position of the kit 27 and the shaft 22 can be ensured, and the kit 27 can be easily removed during maintenance.

Referring to FIG. 7, another embodiment of the tool connector 30 a is a post, which can extend the use distance of the magnetic connector 1.

The present invention further provides a ratchet wrench 4, which includes the magnetic joint 1 as described above, and further includes a wrench body 40 and a ratchet head 41. The ratchet head 41 is pivotably disposed on the wrench body 40 and is provided with a sleeve hole 42 which is sleeved without relative free rotation with the sleeve joint 24, and the sleeve hole 42 is a perforation. With the wrench body 40 and the magnetic joint 1 and the tool joint 30 sleeved in the sleeve hole 42, the ratchet wrench 4 can be directly rotated after the fastening member 50 is initially quickly rotated with the rotation handle 10. The fastening member 50 is further locked, and no tools need to be replaced during the locking process, thereby achieving the functions of simplifying processes and shortening man-hours.

In summary, the present invention utilizes the cooperation of the magnetic joint and the ratchet wrench to loosen and fast rotate the fastener in the initial locking or in the back section, which saves time, and is magnetic to prevent the fastener from falling off. The environment and requirements flexibly apply a variety of this tool connector.

1‧‧‧ magnetic joint
10‧‧‧turn the handle
11‧‧‧ Bump structure
20‧‧‧ Telescopic Rod
21‧‧‧Assembly Department
211‧‧‧Slip hole
212‧‧‧ shrink
22‧‧‧ shaft
221‧‧‧Gully
222‧‧‧C buckle
223‧‧‧arrival
23‧‧‧Elastic piece
24‧‧‧ sets of connectors
25‧‧‧ Joint
251‧‧‧rod
26‧‧‧ Rod hole
27‧‧‧kit
271‧‧‧jack
272‧‧‧Circular groove
273‧‧‧rod
28‧‧‧ Magnetic Parts
281‧‧‧Magnet
282‧‧‧shell
283‧‧‧ Rodent
30,30a‧‧‧Tool connector
31‧‧‧set of connectors
32‧‧‧set of sockets
4‧‧‧ Ratchet Wrench
40‧‧‧ wrench body
41‧‧‧Ratchet head
42‧‧‧ set hole
50‧‧‧Fixing parts

FIG. 1 is a perspective view of a preferred embodiment of the present invention. FIG. 2 is an exploded view of a preferred embodiment of the present invention. FIG. 3 is a sectional view of a preferred embodiment of the present invention. FIG. 4 is an application exploded view of a preferred embodiment of the present invention. FIG. 5 is an application perspective view of a preferred embodiment of the present invention. FIG. 6 is an application cross-sectional view of a preferred embodiment of the present invention. FIG. 7 is an exploded view of another preferred embodiment of the present invention.

1‧‧‧ magnetic joint

30‧‧‧Tool connector

31‧‧‧set of connectors

32‧‧‧set of sockets

4‧‧‧ Ratchet Wrench

40‧‧‧ wrench body

41‧‧‧Ratchet head

42‧‧‧ set hole

Claims (7)

A magnetic joint includes: a rotating handle; a telescopic rod, including an assembling portion extending axially from the rotating handle, a shaft that is telescopically connected to the assembling portion, and a provided on the assembling portion The elastic part between the shaft and the shaft is driven by the rotating handle and is provided with a set of joints. The set of joints is provided to be relatively free of rotation with the assembly holes of a group of joints of a tool joint The set hole is a perforation, and the set of joints is provided in a set of set holes of a ratchet head without relatively free rotation. When the set of joints and the set of connection holes are set without relative free rotation, The rotating handle and the tool connecting piece are respectively located on opposite sides of the ratchet head, and the rotating handle can be manually rotated; a kit and a magnetic piece are connected to an end of the shaft, and the magnetic piece is accommodated in the Kit. The magnetic joint according to claim 1, wherein the connecting portion is further provided with a joint which is detachably connected with the rotating handle. The magnetic joint according to claim 2, wherein the rotary handle is provided with a rod hole, the rod joint is provided with a plurality of rods in the circumferential direction, and the plurality of rods are engaged in the rod holes. The magnetic joint according to claim 1, wherein the tool joint is a sleeve, a post or a screwdriver head. The magnetic joint according to claim 1, wherein the magnetic piece includes a magnet and a magnetically permeable housing containing the magnet, the housing is provided with a plurality of rods in a circumferential direction, and the inner wall of the kit is provided with a plurality of rods, the housing and The rods of the kit are engaged. The magnetic joint according to claim 1, wherein the assembly portion is continuously provided with a sliding hole, one end of the sliding hole forms a constriction, one end of the shaft is radially convex with an abutment edge, and the shaft is slidably disposed on In the slide hole, the abutment edge can abut against the shrinkage. A ratchet wrench includes the magnetic joint according to any one of claims 1 to 6, and further includes: a wrench body; a ratchet head, which is pivotably provided on the wrench body, and the ratchet head is provided with the sleeve. A hole is provided for the set joint of the tool joint not to rotate relatively freely, and a set hole of the set joint of the tool joint is not allowed to relatively freely rotate the set joint of the telescopic rod of the magnetic joint Ground set.